Heterojunction metadevices with Fibonaci's sequential layers for photon absorbance, transmittance, and reflectance evaluation: an early exploratory study

Joaquim Lima V; Isnaldo Souza Coêlho; Vitaly Rodriguez-Esquerre

doi:10.1117/12.2568676

20 August 2020 Heterojunction metadevices with Fibonaci's sequential layers for photon absorbance, transmittance, and reflectance evaluation: an early exploratory study

Joaquim Lima V, Isnaldo Souza Coêlho, Vitaly Rodriguez-Esquerre

Author Affiliations +

Proceedings Volume 11460, Metamaterials, Metadevices, and Metasystems 2020; 114601E (2020) https://doi.org/10.1117/12.2568676
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

In this paper the response of light propagation in hypercrystals (I.E, structures composed by metamaterial) have been numerically analyzed. The heterojunctions were considered to demonstrate that the optical properties change the behavior of the structure at visible and optical frequencies. The structure is composed by periodic layers to combine properties of photonic crystals and hyperbolic metamaterials that present different physical properties not found in nature. In most of cases have been composed by metal and semiconductor in alternate layers. To design a structure the Fibonacci's sequence was used to define the sequence order of layers. The materials used in simulations are Gold and Aluminum for as metals and Silicon for the as semiconductor. To compose a heterojunction photo detector part it was considered the low work-function metal Aluminum, for the intrinsic crystal Silicon, and high work-function metal Gold in this sequential layers.

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Joaquim Lima V, Isnaldo Souza Coêlho, and Vitaly Rodriguez-Esquerre "Heterojunction metadevices with Fibonaci's sequential layers for photon absorbance, transmittance, and reflectance evaluation: an early exploratory study", Proc. SPIE 11460, Metamaterials, Metadevices, and Metasystems 2020, 114601E (20 August 2020); https://doi.org/10.1117/12.2568676

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